VITAVON Front&Rear Hub For Arrma Kraton Outcast 6S Big Rock 6S BLX Long Stub Shaft - Vitavon VITAR330505/ARA330830

Overview

The VITAVON Front & Rear Hub for Arrma Kraton Outcast 6S Big Rock 6S BLX is a premium replacement hub set designed for demanding RC enthusiasts who want to upgrade their 1/10 scale brushless RC vehicles. Whether you're running an Arrma Kraton 6S, Kraton 6S EXB, Outcast 6S, or Big Rock 6S BLX, these high-quality hubs deliver the durability and performance needed for serious bashing, racing, and crawling. This is a professional-grade component that significantly enhances the reliability of your RC car, making it an essential upgrade for anyone who wants their vehicle to handle the rigours of UK terrain and demanding track conditions.

Built by VITAVON, a recognised manufacturer of precision CNC-machined RC components, these front and rear hubs are engineered from premium aluminium 7075—one of the strongest aluminium alloys available for RC applications. The long stub shaft design provides extended durability and improved handling characteristics, particularly beneficial for high-speed driving and aggressive cornering. Whether you're a weekend basher exploring muddy fields, a competitive racer pushing your limits on the track, or someone who demands the very best from their ready-to-run RC vehicle, these hubs represent a genuine performance upgrade that will extend the life of your drivetrain and improve overall handling.

Compatible with multiple Arrma 6S models including the latest EXB variants, this is a genuine OEM replacement that fits seamlessly into your existing setup. The kit comes complete with all the oversized bearings and fasteners you need, making installation straightforward for anyone with basic RC maintenance skills. Available in attractive silver and red colour options, these hubs combine functional excellence with visual appeal.

Key Features

• Premium Aluminium 7075 Construction — These hubs are machined from high-quality aluminium 7075, an aerospace-grade material renowned for its exceptional strength-to-weight ratio and superior durability compared to lower-grade aluminium alloys, ensuring they can withstand the extreme forces generated during high-performance RC driving.
• CNC-Precision Machining — Every hub is manufactured using computer numerical control machining, which guarantees precise tolerances and perfect concentricity, resulting in smooth rotation, reduced vibration, and improved overall vehicle handling characteristics that enthusiasts will immediately notice.
• Long Stub Shaft Design — The extended stub shaft configuration provides enhanced structural rigidity and improved weight distribution, which translates to better handling dynamics, reduced flex under load, and increased longevity of the entire drivetrain assembly on your RC buggy, crawler, or scale truck.
• Oversized Bearing Set Included — The package includes two 8×19×6mm bearings for the front hubs and two 15×24×5mm bearings for the rear hubs, which are larger than stock components and provide superior load-handling capability, smoother rotation, and extended service life even under severe driving conditions.
• Multi-Vehicle Compatibility — These hubs are compatible with Arrma Kraton 6S, Kraton 6S EXB (including the newer ARA8708V5 variant), Outcast 6S, and Big Rock 6S BLX models, making them a versatile upgrade for owners of multiple Arrma 6S vehicles or those planning future upgrades.
• Direct OEM Replacement — Designed as a replacement for the original Arrma AR330505 and ARA330830 hub assemblies, they install directly in place of stock components without modification, ensuring perfect fitment and immediate compatibility with your existing drivetrain.
• Complete Fastener Package — All necessary mounting hardware is included with four screw nuts, eliminating the need for sourcing additional fasteners and ensuring you have everything needed for a complete installation right out of the box.
• Attractive Dual-Colour Option — Available in sleek silver and red finishes, these hubs add visual appeal to your RC car whilst maintaining the professional appearance of a high-performance machine.

Technical Performance

From an engineering perspective, the VITAVON Front & Rear Hub set represents a significant step up from OEM components. The use of aluminium 7075 is critical—this material offers tensile strength comparable to some steel alloys whilst remaining significantly lighter, a crucial consideration in RC vehicle design where unsprung weight directly impacts suspension performance and handling precision. The CNC-machining process ensures that bore diameters, bearing seats, and hub faces are machined to exacting tolerances, which means minimal runout when spinning and perfect concentricity on the vehicle's axle. This precision engineering directly translates to smoother acceleration, more predictable cornering behaviour, and reduced vibration feedback through the chassis. The inclusion of oversized bearings (8×19×6mm front and 15×24×5mm rear) is particularly important for Arrma 6S vehicles, which generate substantial drivetrain forces—these larger bearings distribute loads more effectively than stock components, reducing pressure on bearing races and extending operational life. The long stub shaft design increases the effective leverage arm of the hub assembly, improving weight distribution across the entire axle assembly and reducing stress concentration at the hub-to-shaft interface. Whether you're operating your RC short-course truck on tarmac tracks, taking your crawler over rocky terrain, or using your buggy for scale off-road recreation, these hubs provide the durability and precision needed to handle the demands of modern RC motorsport. The engineering quality is particularly evident when compared to budget alternatives—Vitavon components are recognised throughout the RC community as genuine performance upgrades, not merely cosmetic enhancements. For users of electric RC vehicles running 6S LiPo battery systems, these hubs ensure reliable power transfer from your brushless motor through the transmission and into the wheels, maximising efficiency and minimising mechanical losses.

What's in the Box

• 2× VITAVON Front Hub assemblies (pair)
• 2× VITAVON Rear Hub assemblies (pair)
• 2× 8×19×6mm oversized bearings (front)
• 2× 15×24×5mm oversized bearings (rear)
• 4× Screw nuts (fastening hardware)

Compatibility and Installation Notes

These hubs are specifically engineered for long stub shaft versions of Arrma 6S vehicles. Before purchasing, you must verify that your vehicle uses the long stub shaft configuration—the product is not compatible with standard stub shaft versions. Compatible models include: Arrma Kraton 6S, Arrma Kraton 6S EXB (all variants including the newer ARA8708V5), Arrma Outcast 6S, Arrma Big Rock 6S BLX, and Arrma Notorious 6S EXB V6. Installation is straightforward for anyone with basic RC maintenance experience—simply remove the original hubs, press the supplied bearings into the new hubs, and install using the supplied fasteners. No special tools are required beyond standard hex drivers and bearing press tools if you're removing bearings from the original hubs. The default colour is silver; if you require the red option, please specify this with your order.

Colour Customisation

These hubs are available in attractive silver and red finishes. The default colour dispatched is silver, but if you prefer the red option or a different colour configuration, simply confirm your colour preference in your order confirmation email after purchase, and we'll ensure the correct items are prepared for your shipment.

Frequently Asked Questions

• Are these hubs suitable for my Arrma 6S RC vehicle? — These hubs are compatible with Arrma Kraton 6S, Kraton 6S EXB (including the newer ARA8708V5 variant), Outcast 6S, Big Rock 6S BLX, and Notorious 6S EXB V6 models. However, they are specifically designed for long stub shaft versions only. Before purchasing, confirm your vehicle uses the long stub shaft configuration by checking your vehicle's documentation or comparing with the product images. These are direct replacements for original Arrma AR330505 and ARA330830 components.
• Why would I want to upgrade from the standard hubs? — The stock Arrma hubs, whilst adequate for casual use, flex under extreme driving conditions and can develop play or wear relatively quickly under sustained use. These VITAVON hubs, machined from premium aluminium 7075 and supplied with oversized bearings, offer superior stiffness, precision, and longevity. You'll notice improved handling responsiveness, more consistent steering feel, and significantly extended drivetrain lifespan, particularly valuable if you're pushing your RC car hard on UK tracks or engaging in competitive racing.
• What do the oversized bearings offer compared to stock bearings? — The oversized bearings (8×19×6mm front, 15×24×5mm rear) distribute hub loads more effectively across their bearing races, reducing pressure concentration and extending bearing life. They also provide smoother rotation and reduced friction losses, which translates to marginally improved efficiency and smoother handling feel. For users running powerful brushless motors on 6S LiPo systems, these larger bearings ensure reliable rotation even under sustained high-torque conditions.
• Do I need special tools to install these hubs? — Basic installation requires standard RC maintenance tools: hex drivers for fasteners and a bearing press if you're transferring bearings between hubs. No specialised equipment is needed. The supplied fasteners and bearings fit directly into the hub bores, making installation straightforward for anyone with modest RC mechanical experience. If you're replacing worn hubs, simply remove the old hubs, install the new ones, press in the supplied bearings, and secure with the provided screw nuts.
• What is aluminium 7075 and why is it used here? — Aluminium 7075 is an aerospace-grade aluminium alloy known for exceptional strength and rigidity whilst remaining lightweight. It offers tensile strength comparable to mild steel but at roughly one-third the weight, making it ideal for RC components where reducing unsprung weight improves suspension performance and handling precision. This material is significantly superior to lower-grade aluminium alloys found in budget hub replacements, ensuring these hubs maintain structural integrity under the extreme forces generated by high-performance brushless RC vehicles.
• Are these genuine Vitavon products? — Yes, these are authentic VITAVON components, manufactured with CNC precision and premium materials. Vitavon is a recognised manufacturer of high-quality RC upgrade components, and these hubs represent genuine performance enhancements rather than cosmetic modifications. All items from RC Model Shop are genuine products from authorised distributors.
• Will these hubs improve my lap times or make my RC car faster? — Whilst these hubs don't directly increase motor power or top speed, they improve vehicle responsiveness and handling consistency by reducing drivetrain flex and friction. This translates to more precise steering feedback, faster corner exit, and improved overall vehicle control—benefits that competitive racers and serious bashers will appreciate. The smoother, more predictable handling and improved durability mean you spend more time driving and less time troubleshooting mechanical issues.
• What colour options are available? — These hubs are supplied in silver as the default option, with red finishes also available. If you require the red option or a specific colour configuration, simply specify your preference in the order notes or confirmation email, and we'll prepare the correct items for dispatch.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the VITAVON Front&Rear Hub For Arrma Kraton Outcast 6S Big Rock 6S BLX Long Stub Shaft today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.